{"id":99653,"date":"2021-04-04T16:22:47","date_gmt":"2021-04-04T14:22:47","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r6u2"},"modified":"2021-04-04T16:22:47","modified_gmt":"2021-04-04T14:22:47","slug":"kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r6u2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/kompaniya-oracle-vypustila-yadro-unbreakable-enterprise-kernel-r6u2","title":{"rendered":"La compagnia Oracle ha rilasciato il kernel Unbreakable Enterprise Kernel R6U2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La societ\u00e0 Oracle ha rilasciato il secondo aggiornamento funzionale per il kernel Unbreakable Enterprise Kernel R6, progettato per l'uso nella distribuzione Oracle Linux come alternativa al pacchetto standard del kernel di Red Hat Enterprise Linux. Il kernel \u00e8 disponibile per architetture x86_64 e ARM64 (aarch64). I codici sorgente del kernel, compresa la suddivisione in singoli patch, sono pubblicati nel repository Git pubblico di Oracle.    <\/p>\n<p>Il pacchetto Unbreakable Enterprise Kernel 6 si basa sul kernel Linux 5.4 (UEK R5 si basava sul kernel 4.14), ed \u00e8 arricchito con nuove funzionalit\u00e0, ottimizzazioni e correzioni, ed \u00e8 stato testato per la compatibilit\u00e0 con la maggior parte delle applicazioni funzionanti in RHEL, ed \u00e8 specificamente ottimizzato per lavorare con software e hardware industriale Oracle. I pacchetti di installazione e src del kernel UEK R6 sono preparati per Oracle Linux 7.x e 8.x.       <\/p>\n<p>Variazioni principali:  <\/p>\n<ul>\n<li class=\"l\">  Per i cgroups \u00e8 stato aggiunto un nuovo controller di distribuzione della memoria slab (slab memory controller), che si distingue per il trasferimento della contabilizzazione slab dal livello delle pagine di memoria al livello degli oggetti del kernel, consentendo la condivisione delle pagine slab tra diversi cgroup, invece di allocare cache slab separate per ogni cgroup. L'approccio proposto consente di aumentare l'efficienza nell'uso dello slab, riducendo fino al 50% la quantit\u00e0 di memoria utilizzata per lo slab, diminuendo significativamente il consumo totale di memoria del kernel e riducendo la frammentazione della memoria.\n<li class=\"l\"> Per i dispositivi Mellanox ConnectX-6 Dx \u00e8 stato aggiunto un nuovo driver vpda con supporto per il framework vDPA (vHost Data Path Acceleration), che consente di utilizzare l'accelerazione hardware per le operazioni di I\/O basate su VirtIO nelle macchine virtuali.\n<li class=\"l\"> Sono state trasferite nel kernel Linux 5.9 migliorie relative al supporto dei dispositivi NVMe.\n<li class=\"l\"> Sono stati trasferiti correzioni e miglioramenti per i file system Btrfs, CIFS, ext4, NFS, OCFS2 e XFS.\n<li class=\"l\"> I driver sono stati aggiornati, inclusi lpfc 12.8.0.5 (Broadcom Emulex LightPulse Fibre Channel SCSI) con supporto per la modalit\u00e0 SCSI Fibre Channel a 256 Gbps, mpt3sas 36.100.00.00 (LSI MPT Fusion SAS 3.0), qla2xxx 0.02.00.103-k (QLogic Fibre Channel HBA).\n<li class=\"l\"> \u00c8 stato aggiunto il supporto sperimentale <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/vpn\/\"   title=\"VPN\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"154\">VPN<\/a> Wireguard, implementato a livello di kernel.\n<li class=\"l\">  In NFS \u00e8 stata aggiunta la supporto sperimentale per la possibilit\u00e0 di copiare direttamente file tra <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/it\/server\/dts-dusseldorf\/\"   title=\"server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3441\">server<\/a>, definita nella specifica NFS 4.2\n<li class=\"l\"> Nello schedulatore delle attivit\u00e0 \u00e8 stata implementata una funzionalit\u00e0 sperimentale per limitare l'esecuzione parallela di task importanti su diversi core CPU, per bloccare i canali di fuoriuscita associati all'uso della cache condivisa nella CPU.       <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54896\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Oracle \u0432\u044b\u043f\u0443\u0441\u0442\u0438\u043b\u0430 \u0432\u0442\u043e\u0440\u043e\u0435 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Unbreakable Enterprise Kernel R6, \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e \u0434\u043b\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0435 Oracle Linux \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u044b \u0448\u0442\u0430\u0442\u043d\u043e\u043c\u0443 \u043f\u0430\u043a\u0435\u0442\u0443 \u0441 \u044f\u0434\u0440\u043e\u043c \u0438\u0437 Red Hat Enterprise Linux. \u042f\u0434\u0440\u043e \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e \u0434\u043b\u044f \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440 x86_64 \u0438 ARM64 (aarch64). \u0418\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0442\u0435\u043a\u0441\u0442\u044b \u044f\u0434\u0440\u0430, \u0432\u043a\u043b\u044e\u0447\u0430\u044f \u0440\u0430\u0437\u0431\u0438\u0432\u043a\u0443 \u043d\u0430 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0435 \u043f\u0430\u0442\u0447\u0438, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u044b \u0432 \u043f\u0443\u0431\u043b\u0438\u0447\u043d\u043e\u043c Git-\u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0438 Oracle. \u041f\u0430\u043a\u0435\u0442 Unbreakable Enterprise [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-99653","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Oracle \u0432\u044b\u043f\u0443\u0441\u0442\u0438\u043b\u0430 \u0432\u0442\u043e\u0440\u043e\u0435 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Unbreakable Enterprise Kernel R6, \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u0443\u0435\u043c\u043e\u0433\u043e \u0434\u043b\u044f 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